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Fuel pressure

William Slaughter

Well Known Member
IO-360M with Silver Hawk traditional injection.
We're at 31 hours in phase 1, going well so far, but I've become a little concerned about the fuel pressure being delivered by my mechanical fuel pump. It holds a steady 19 psi in flight. No operational issues detected, but these pumps are rated as being 25 - 30 psi. Cause for concern, or just "yeah they do that"?
 
Mine is the same

Mine is the same 17-20 in flight. 26-28 with boost pump on.
No difference at all in performance. Doesn't matter if the temps are high or low. 200 hrs so far
 
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